The YB43X proportional pressure reducing valve is a valve that utilizes a piston structure for pressure regulation, achieving the function of reducing dynamic and static pressures in a fixed ratio by means of pressure differences generated by different cross-sectional areas at both ends of the floating piston.

Working Principle

The valve operates by moving the floating piston under the influence of the inlet pressure, utilizing the difference in cross-sectional area at both ends of the piston to create a pressure difference. This reduces the pressure after the valve to a set ratio (e.g., 2:1, 3:1). Regardless of pressure changes before the valve, the pressure after the valve remains stable within the set ratio range, while also providing functions to reduce dynamic and static pressure.

Key Performance Characteristics

Pressure Reduction Precision: Error not exceeding ±8%

Operating Pressure: 0.2-2.5 MPa (varies by model)

Applicable Medium: Water, gas; Temperature ≤ 90℃

‌Connection Type: Flange, Female Thread‌

Structural Features

Valves available in cast iron, stainless steel, or brass, with superior corrosion resistance.

Seals are made of nitrile rubber,三元乙丙橡胶,etc., ensuring optimal sealing.

Compact and lightweight, supports installation at any angle, easy maintenance.

Application Scenarios

Ideal for high-rise buildings, fire systems, industrial pipelines, and other applications requiring stable pressure reduction. It can eliminate water hammer effects and protect the pipeline network.